Broadly speaking, this dream tends to indicate an increase in your blessings and opportunities, if your finances are poor, using your energy and capital on lawful, wholesome paths, letting go of the problems that make you unhappy, freeing yourself from illness and needless fears and starting a new job with the support of some people.
Something will go wrong today, but it won’t be as bad as you might first think.
As a classic reading goes, small rat biting hand in your dream symbolizes taking a venture started from scratch to the top and drawing the attention of major firms, becoming a homeowner, earning a great deal of money, and ending family arguments, your affairs becoming better than ever, never abandoning your honorable, honest way and your principles, your efforts drawing everyone’s attention, finding relief from some of your troubles.
A bit of advice: just go your way and don’t get into arguments that won’t do you any good.
Dream Oracle suggests that the dream about small rat biting hand might reflect siblings tackling a difficult job together, finding healing from spiritual troubles through laughter, having days of ease, peace, and happiness come your way, setting an example and opening doors for others in business, your spouse standing by you materially and spiritually at all times.

